/Engine/Source/Runtime/TypedElementFramework/Public/Elements/Interfaces/TypedElementDataStorageUiInterface.h
Calls the provided callback for all known registered widget purposes.
void ListWidgetPurposes ( const [WidgetPurposeCallback](API\Runtime\TypedElementFramework\Elements\Interfaces\ITypedElementDat-_2\WidgetPurposeCal-) & Callback ) const